diff --git a/ccpp/data/CCPP_typedefs.F90 b/ccpp/data/CCPP_typedefs.F90
index 01695bc4a..1e2171838 100644
--- a/ccpp/data/CCPP_typedefs.F90
+++ b/ccpp/data/CCPP_typedefs.F90
@@ -141,8 +141,8 @@ subroutine interstitial_create (Interstitial, is, ie, isd, ied, js, je, jsd, jed
     ! For multi-gases physics
     integer,        intent(in)           :: nwat
     integer,        intent(in), optional :: ngas
-    real(kind_dyn), intent(in), optional :: rilist(:)
-    real(kind_dyn), intent(in), optional :: cpilist(:)
+    real(kind_dyn), intent(in), optional :: rilist(0:)
+    real(kind_dyn), intent(in), optional :: cpilist(0:)
     integer,        intent(in)           :: mpirank
     integer,        intent(in)           :: mpiroot
     !
diff --git a/ccpp/data/GFS_typedefs.F90 b/ccpp/data/GFS_typedefs.F90
index 14387929f..83481397a 100644
--- a/ccpp/data/GFS_typedefs.F90
+++ b/ccpp/data/GFS_typedefs.F90
@@ -3897,6 +3897,9 @@ subroutine control_initialize (Model, nlunit, fn_nml, me, master, &
 
     if (levr < 0) then
       Model%levr           = levs
+    else if (levr > levs) then
+      write(0,*) "Logic error, number of radiatiton levels (levr) cannot exceed number of model levels (levs)"
+      stop
     else
       Model%levr           = levr
     endif
@@ -4783,12 +4786,12 @@ subroutine control_initialize (Model, nlunit, fn_nml, me, master, &
     Model%restart          = restart
     Model%hydrostatic      = hydrostatic
     Model%jdat(1:8)        = jdat(1:8)
-    allocate(Model%si(Model%levr+1))
+    allocate(Model%si(Model%levs+1))
     !--- Define sigma level for radiation initialization
     !--- The formula converting hybrid sigma pressure coefficients to sigma coefficients follows Eckermann (2009, MWR)
     !--- ps is replaced with p0. The value of p0 uses that in http://www.emc.ncep.noaa.gov/officenotes/newernotes/on461.pdf
     !--- ak/bk have been flipped from their original FV3 orientation and are defined sfc -> toa
-    Model%si = (ak + bk * con_p0 - ak(Model%levr+1)) / (con_p0 - ak(Model%levr+1))
+    Model%si(1:Model%levs+1) = (ak(1:Model%levs+1) + bk(1:Model%levs+1) * con_p0 - ak(Model%levs+1)) / (con_p0 - ak(Model%levs+1))
     Model%sec              = 0
     Model%yearlen          = 365
     Model%julian           = -9999.
diff --git a/ccpp/data/GFS_typedefs.meta b/ccpp/data/GFS_typedefs.meta
index f95931c1b..0b8557bdf 100644
--- a/ccpp/data/GFS_typedefs.meta
+++ b/ccpp/data/GFS_typedefs.meta
@@ -2519,13 +2519,13 @@
   standard_name = sigma_pressure_hybrid_coordinate_a_coefficient
   long_name = a parameter for sigma pressure level calculations
   units = Pa
-  dimensions = (vertical_interface_dimension_for_radiation)
+  dimensions = (vertical_interface_dimension)
   type = real
 [bk]
   standard_name = sigma_pressure_hybrid_coordinate_b_coefficient
   long_name = b parameter for sigma pressure level calculations
   units = none
-  dimensions = (vertical_interface_dimension_for_radiation)
+  dimensions = (vertical_interface_dimension)
   type = real
 [levsp1]
   standard_name = vertical_interface_dimension
@@ -5228,7 +5228,7 @@
   standard_name = sigma_pressure_hybrid_vertical_coordinate
   long_name = vertical sigma coordinate for radiation initialization
   units = none
-  dimensions = (vertical_interface_dimension_for_radiation)
+  dimensions = (vertical_interface_dimension)
   type = real
   kind = kind_phys
 [dxinv]
diff --git a/ccpp/physics b/ccpp/physics
index 9a3846dca..1f907e44a 160000
--- a/ccpp/physics
+++ b/ccpp/physics
@@ -1 +1 @@
-Subproject commit 9a3846dca98d558432219f8f9919c9d1768969a7
+Subproject commit 1f907e44aa47224c22c7d34f19b0f840facd9eb8